The personal auto policy's Joint Ownership Coverage $($PP $0334)$ endorsement can be used for all the following EXCEPT:

$($Search Chapter $5)$

a$.$ Dennis and Laurel, who plan to get married someday, share ownership of their house and car.

b$.$ Carl buys his teenage son, Eric, a car. Carl puts the title in his name, but Eric will be the primary driver.

c$.$ Max and his son Christopher are co$-$owners of the car Christopher parks outside his college dormitory.

d$.$ Wilma and Alma are unmarried sisters who share ownership of their house and car.